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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 67301. |
Light notes |
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Answer» What is chemical reaction Hj |
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| 67302. |
Why are domestic circuits are connected in parallel |
| Answer» Because if circuits are connect in series then one device would damage all device will damaged or stoped working ..... but in parallel if one device is damaged then it will not affect the working of the others...?? | |
| 67303. |
Define dehydration.... please explain |
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Answer» A chemical reaction between two compounds that produces water is a dehydration reaction. For example, if two reactants are combined where a hydrogen from one reactant binds to a hydroxyl group from the other reactant, it can produce a dimer and a water molecule.Chemicals commonly used in dehydration reactions include concentrated phosphoric acid, concentrated sulfuric acid, hot aluminum oxide and hot ceramic. When a substance lost its water molecules it becomes dehydrated |
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| 67304. |
Write equation for combustion of sodium with ethanol |
| Answer» Reaction of alcohols with sodium leads to the evolution of hydrogen. Reaction of sodium with ethanol the product formed along with hydrogen is sodium ethoxide.2Na + 2CH3CH2OH → 2CH3CH2ONa + H2\xa0 | |
| 67305. |
Daigram of Placenta |
| Answer» No diagrams | |
| 67306. |
King of acid is |
| Answer» Concentrated H2SO4 ( sulphuric acid) | |
| 67307. |
State the relation between 1ampere and 1coulomb |
| Answer» The SI unit of charge, the coulomb, "is the quantity of electricity carried in 1 second by a current of 1 ampere".Conversely, a current of one ampere is one coulomb of charge going past a given point per second:In general, charge Q is determined by steady current I flowing for a time t as Q = It.\xa0 | |
| 67308. |
Why is decomposition of vegetables called exothermic |
| Answer» Decomposition reaction may not always require energy, but usually they require energy and is called endothermic reaction. whether the process is exothermic or endothermic depends upon the overall enthalpy of reaction. sometimes to decompose a substance, the reaction may need energy, but the energy released of the products can be so large that the overall process can be termed as exothermic. The decomposition of plant and animal organic waste by the action of microbes into useful compost is an exothermic reaction because large amount of energy is released in this process. It is different from other chemical reactions,as they need energy to break the bond. But in these reaction the breakdown is carried out by microbes. | |
| 67309. |
AMBULANCE pr ulta Ambulance kyo likha rhta hai. |
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Answer» Due to lateral inversion. To make AMBULANCE easier read for vehicles in front of the ambulance. ... The most common modern usage of mirror writing can be found on the front of ambulances, where the word "AMBULANCE" is often written in very large mirrored text, so that drivers see the word the right way around in their rear-view mirror. |
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| 67310. |
Function of Diencephalon |
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Answer» Diencephalon is the posterior part of the forebrain that connects the midbrain with the cerebral hemispheres. It includes the thalamus and hypothalamus. The function of diencephalon is to relay sensory information between brain regions and to control many autonomic of the peripheral nervous system. The diencephalon relays sensory information between brain regions and controls many autonomic functions of the peripheral nervous system. |
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| 67311. |
Why do plant need nitrogen? How do plants obtain nitrogen? |
| Answer» Nitrogen is an important element for all living organisms. Plants obtain nitrogen through a natural process. Nitrogen is introduced to the soil by fertilizers or animal and plant residues. Bacteria in the soil convert the nitrogen to ammonium and nitrate, which is taken up by the plants by a process of nitrogen fixation.All plants need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. | |
| 67312. |
In mammals why is it necessary to separate oxygenated and deoxygenated blood |
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Answer» Warm-blooded animals such as birds and mammals maintain a constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment. Hence, these animals require more oxygen (O2) for more cellular respiration so that they can produce more energy to maintain their body temperature.\xa0Thus, it is necessary for them to separate oxygenated and de-oxygenated blood, so that their circulatory system is more efficient and can maintain their constant body temperature. Because mammals have a complex body system |
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| 67313. |
Is here anyone of satna |
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Answer» Where are you from Aftab? What is satna, its ambiguous, try to be unequivocal ☺☺☺ |
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| 67314. |
Why graphite is a good conductor of electricity |
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Answer» Due to the presence of Mobile electron, this mobile electrons are always free to move through one layer to other. Graphite is a good conductor of electricity. Its structure is the main reason for this property. Each carbon atom in graphite is directly linked to only three carbon atoms through covalent bonds. Therefore, out of the four valence electrons in a carbon atom, only three are used for bonding and the fourth is relatively free and can move from one carbon atom to the other. These free electrons make graphite a good conductor of electricity. Graphite is a good conductor of heat. This is because graphite contains delocalised(free) electrons. |
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| 67315. |
Metals are good conductor of heat.Why??? |
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Answer» As a result of free electron, which can travel through it quite easily. Metal are a good conductor of heat and electricity because of their metallic bonding. Metallic bonding consists of a sea of electrons. The free electrons present in the metal have ability to move very freely. Therefore these free electron are responsible for the conduction of heat and electricity. |
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| 67316. |
What is double reproduction |
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Answer» Double fertilization : It occurs when one male nucleus fertilizes (fuses) with egg cell to form zygote cell and other male nucleus fuses (fertilizes) with two polar nuclei to cause triple fusion. As these two types of fertilizations take place at the same time in the ovule of the plant, it is known as double fertilization.After fertilization:(i) Ovary develops into fruit.(ii) Ovules develop into seeds. Bhai double reproduction nhi hota ye double fertilisation hota hai???? |
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| 67317. |
Difference between renewable and nonrenewable |
| Answer» .NoRenewable energy resourcesNon-renewable energy resources1.It can be used again and again throughout its life.It cannot be used again and again but one day it will be exhausted.2.These are the energy resources which cannot be exhausted.They are the energy resources which can be exhausted one day.3. It has low carbon emission and hence environment friendly.It has high carbon emission and hence not environment friendly.4.It is present in unlimited quantity.It is present in limited quantity and vanishes one day5.Cost is low.Cost is high.6.Renewable energy resources are pollution free.The non-renewable energy resources are not pollution free.7.Life of resources is infinite.Life of resources is finite and vanishes one day.8.It has high maintenance cost.It has low maintenance cost as compared with the renewable energy resources.9.Large land area is required for the installation of its power plant.Less land area is required for its power plantbinstallation.10.Solar energy, wind energy, tidal energy etc are the examples of renewable resources.Coal, petroleum, natural gases are the examples of non-renewable resources | |
| 67318. |
What is strereopsis |
| Answer» | |
| 67319. |
Why is condom use more and more peoole |
| Answer» Condom is used by more and more people so that they could protect them from sexually transmited disease.Ex-AIDS etc. | |
| 67320. |
What are the chemical formulas for soaps and detergents |
| Answer» | |
| 67321. |
Write two difference between Menarch and Menopause |
| Answer» Menarch is when menstruation occurs nd meno pause is when menstruation is over | |
| 67322. |
What is commuter? |
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Answer» The split ring is known as commutator Commutator is an attachment, connected with the armature of a motor or through which ensures the current flows as direct current. Yup!!! |
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| 67323. |
what is varigiated leaves? |
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Answer» A variegated leaf contains some part which is green and some part which is not green. The green part of the leaf is green in colour to the presence of chlorophyll and can perform photosynthesis, non green part does not have chlorophyll and hence is non-photosynthetic. A variegated leaf is a leaf which has both green and non-green parts. |
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| 67324. |
Power of a lens is -4D ..define its principal focus and calculate its focal length |
| Answer» Focal length will be 0.25 meter. The lense will be concave because power is in -ve. | |
| 67325. |
What is water of crystallisation? Give an example. |
| Answer» Water of crystallization is the fixed number of water molecules present in one formula unit of a salt. Or we can say water stoichiometrically bound into crystal. For example, chemical formula of hydrated copper sulphate is CuSO4\xa0· 5H2O Copper sulphate has 5 molecules of water of crystallisation. Sodium carbonate (Na2CO3.10H2O) contains ten molecules of water of crystallisation. | |
| 67326. |
What is chlor alkali |
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Answer» . It is process in which electricity is passed through the aqueous solution of sodium cloride forming slaked lime at anode and chlorine at cathode, because chlorine is formed at one electrode and a alkaline solution to other electrode it is called chlor-alkali. |
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| 67327. |
What do you mean by homologous series |
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Answer» a series in which there is difference of CH2 between hydrocarbon, are called homologous series. It is found in the functional groups.these are the similarly constituted compounds altering from each other by CH2. It is found in the functional groups.these are the similarly constituted compounds altering from each other by CH2 unit and a mass of 14u. A series of compounds with the same functional group and similar chemical properties in which is successful member differ by\u3000CH2 |
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| 67328. |
What do you mean by isomers? |
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Answer» Definition of isomer. 1 : one of two or more compounds, radicals, or ions that contain the same number of atoms of the same elements but differ in structural arrangement and properties. 2 : a nuclide isomeric with one or more others. The compounds having same molecular formula but different structural formula |
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| 67329. |
Principal of elecric generator |
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Answer» An electric generator works on the principle of Faraday\'s law of electromagnetic induction. Faraday\'s law of electromagnetic induction states that “whenever a current carrying conductor are placed in the magnetic field, then a flux is induces in the circuit due to which a current start to flow in the rotor also. Electric generator is based upon the principle of electromagnetic induction. Princi.......................is that when a straight conductor is moved in a magnetic field then current is induced in the conductor |
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| 67330. |
What is the nature of lens? |
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Answer» There are around six type of lens, which lens are you talking about? Which lens you are asking about? |
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| 67331. |
Write about human digestive system and of body structures used in it |
| Answer» The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has many stages.'} | |
| 67332. |
What is easterification? Give equations also? |
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Answer» The reaction of alcohols and carboxylic acids to form different types of pleasant smelling esters is known as esterification The reaction between etanol and ethanoic acid to give sweet smelling compound ester,is called esterification reaction. |
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| 67333. |
What are amphoteric oxides ? With example |
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Answer» Those oxide as well as acidic aur basic in nature is called amphoteric oxideEg - Zno, Al2o3 Yess the oxides which show both character of metals oxide andnon metal oxides, are called amphoteric oxides.EX.magnesium oxides, zinc oxides. There are certain oxide of metal which unlike many other reacts with both acid and bases. These oxides are called an amphoteric oxide. Eg MgO |
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| 67334. |
Is pituitary gland controlled by hypothalamus? |
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Answer» Yes surely pituatry gland is controlled by hypothalmus.. Yes.hypothalamus is called master gland and controls pituitary gland Yes right No , when pituitary gland produced lage amount of hormones , then the hypothalamus control yes |
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| 67335. |
Why biogas is considered to be a boon to farmers? |
| Answer» Indeed, biogas is a boon for farmer as it not only provide them with quality and cheap energy, but in addition to it, it provide them with amazing manure along with an excellent method for disposing the waste materials. | |
| 67336. |
What is dormancy of seeds |
| Answer» Dormancy is the inactive stage of seed | |
| 67337. |
Whyin mammals and birds is necessary to separate oxygenated or deoxygenated blood |
| Answer» Because Mammals need to maintain their body temperature as they are warm blooded. So it is necessary to separate the oxygenated and deoxygenated blood. | |
| 67338. |
an one have latest smaple paper ? |
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Answer» I also want of maths Yess Yess |
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| 67339. |
What is Mendel\'s experiment |
| Answer» Mendel conducted a series of experiments in which he crossed the the pollinated plants to study one character (at a time).? | |
| 67340. |
What is ohmslaw |
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Answer» the potential difference between two ends of a wire is directly proportional to the curreny if the temprature remains same At constant temperature the potential difference is directly proportional to current flowing through them v=I/R |
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| 67341. |
,give three diff. between minerals and ores. |
| Answer» Minerals:. 1)All the naturally occurring substances of metals which are present in the earth’s crust are known as Minerals.2)Minerals are native form in which metals exist.3)All Minerals are not ores4) example: clay is the mineral of aluminium.Ores:.....1)Ores are usually used to extract metals economically.2) A large amount of metals are present.3)Ores are mineral deposits.4)All ores are minerals.5)bauxite and cryolite are the ores of aluminium.?.....hope it helps!......? | |
| 67342. |
why do gaurd cell bend, when they become turgid? |
| Answer» When the guard cells become turged and swell it lead to the opening of stomatal pores........ | |
| 67343. |
What is the role of decomposers in the ecosystem |
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Answer» Thank u very much sissy Decomposers\xa0and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms.\xa0Decomposers\xa0are very important for any\xa0ecosystem. If they weren\'t in the\xa0ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.Hope it will help yu ?? |
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| 67344. |
What is heart? What is its funtion and structure |
| Answer» Heart is a fist shape muscular organ of our body that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes......, hope it will help yu, kyunki iska answer thoda bda hai, or mujhe pic send krna nhi ata........sry | |
| 67345. |
What is sapnoification reaction.pls tell fast |
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Answer» Saponification is simply the process of making soaps. Soaps are just potassium or sodium salts of long chain fatty acids. During saponification,\xa0ester\xa0reacts with an inorganic base to produce alcohol and soap. Generally, it occurs when triglycerides are reacted with potassium or sodium hydroxide (lye) to produce glycerol and a fatty acid salt, called ‘soap’. Triglycerides are generally animal fats and vegetable oils. When they are reacted with sodium hydroxide, a hard form of soap is created. This is where potassium comes and creates a softer version of the soap.The equation can be written as:Saponification reaction\tEster + Base ————–> Alcohol + Soap\t Saponification is a process that involves conversion of fat or oil into soap and alcohol by the action of heat in the presence of aqueous alkali. Soaps are salts of fatty acids whereas fatty acids are saturated monocarboxylic acids that have long carbon chains e.g. CH₃(CH₂)₁₄COOH. |
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| 67346. |
Explain the working of electric motor |
| Answer» | |
| 67347. |
What is ampere circuital law? |
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Answer» \tAmpere\'s circuital law in magnetism is analogous to gauss\'s law in electrostatics\tThis law is also used to calculate the magnetic field due to any given current distribution\tThis law states that\t" The line integral of resultant magnetic field along a closed plane curve is equal to μ0 time the total current crossing the area bounded by the closed curve provided the electric field inside the loop remains constant" In classical electromagnetism, Ampère\'s circuital law relates the integrated magnetic field around a closed loop to the electric current passing through the loop ..........., i think this is yur answer..........hope it will help yu☺☺ |
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| 67348. |
Explain double circulation heart of human |
| Answer» Circulation of blood\xa0twice\xa0in the heart is known as double circulation.Right and left side of heart are seperated from each other as the blood\xa0in both sides can\'t mix up. Oxygenated\xa0(oxygen containing) blood circulates in left side, it comes form lungs in to left atrium\xa0& goes to different parts of body by passing through left ventricle & aorta. De-oxygenated( Carbondioxide containing) blood\xa0circulates in right side,it comes from different body parts to the right atrium & goes to lungs for oxygenation by passing theough right ventricle and pulmonary artries. | |
| 67349. |
Explain myopia, hypermetropia, pressbiopia |
| Answer» Myopia\tNear-sightedness : A person with Myopia can see nearby objects clearly\tA person with myopia cannot see faraway objects clearly.\tThe far point for the myopic eye is nearer than infinity\tOccurs due to\tExcessive curvature of the eye lensElongation of eyeball\t\t\tThe image of a distance object is formed in front of the retina and not on the retina\tDefected is corrected by using Concave lenses such that the lens will bring the image back on to the retina.Hypermetropia\tFar sightedness : A person with Hypermetropia can see faraway objects clearly.\tA person with Hypermetropia cannot see nearby objects clearly.\tThe near point of the eye is more than 25cm\tThis arises mostly during latter stages in life, as a result of the weakening of the ciliary muscles and/or the decreased flexibility of the lens.Focal length of the eye lens is too longEyeball has become too small.\xa0\t\t\tThe image of a distance object is formed in behind the retina and not on the retina\tDefected is corrected by using Convex lenses such that the lens will bring the image back on to the retina.Presbyopia\tThe power of accommodation of the eye usually decreases with ageing. The ciliary muscles weaken and thereby the flexibility of the eye lens reduces.\tThe near point moves away.\tSpectacles with convex lenses are recommended | |
| 67350. |
Function of hormones & its related glang |
| Answer» 1. Hormones of Thyroid: Thyroid gland basically releases two hormones Triiodothyronine (T3) and Thyroxine (T4), which helps in controlling the metabolism of our body. Further these hormones regulates weight, determines energy levels, internal body temperature, skin, hair etc.2. Insulin: This hormone is released by pancreas, a leaf like gland located in the abdominal cavity behind the stomach. It allows the body to use glucose or sugar from carbohydrates in the food for energy or to store glucose for future use. It helps in keeping blood sugar level from getting too high i.e. hyperglycemia or too low i.e. hypoglycemia.3. Estrogen: It is a female *** hormone released by the ovaries. It is responsible for the reproduction, menstruation and menopause. Excess of estrogen in the female body increases the risk of breast cancer, uterine cancer, depression, moodiness etc. If estrogen level is less in female body leads to acne, skin lesions, thinning skin, hair loss etc. | |